ThunderJet Alexis OB Offshore 2010 boat specs
ThunderJet
ThunderJet Alexis OB Offshore 2010
2010
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VS
ThunderJet TJ Offshore 30 ft. 2013 boat specs
ThunderJet
ThunderJet TJ Offshore 30 ft. 2013
2013
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ThunderJet Alexis OB Offshore 2010 vs ThunderJet TJ Offshore 30 ft. 2013 — Same Brand, Different Boat

Matching a modified vee ThunderJet Alexis OB Offshore 2010 against a deep vee ThunderJet TJ Offshore 30 ft. 2013 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.

Size is the most obvious dividing line here. The ThunderJet Alexis OB Offshore 2010 measures 21,0 feet overall (2010), giving it roughly 18,0 additional feet of deck space compared to the ThunderJet TJ Offshore 30 ft. 2013 at 3,0 feet (2013). At 24 lbs and 72 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.

The ThunderJet TJ Offshore 30 ft. 2013 tops out at 500 hp. Engine specs for the ThunderJet Alexis OB Offshore 2010 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the ThunderJet TJ Offshore 30 ft. 2013 carries 16 gallons versus 5 gallons in the ThunderJet Alexis OB Offshore 2010. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

For family outings this is probably the sharpest distinction between the two. The ThunderJet TJ Offshore 30 ft. 2013 is rated for 9 passengers, while the ThunderJet Alexis OB Offshore 2010 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the ThunderJet TJ Offshore 30 ft. 2013 could be the deciding factor.

Bottom line: Choose the ThunderJet TJ Offshore 30 ft. 2013 if your priority is putting more people on the water — it handles 9 passengers and at 3,0 ft it has the deck room to back that rating up comfortably. The ThunderJet Alexis OB Offshore 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.
General Boat Info
MakeThunderJet
MakeThunderJet
ModelAlexis OB Offshore
ModelTJ Offshore 30 ft
Model Year201
Model Year2013
Measurements / Dimensions
Beam102 in
Beam10 ft
Beam - Meters2.59
Beam - Meters3.05
Beam - Inches102
Beam - Inches12
Deadrise18° Entry: 45 °
DeadriseStern: 18° Bow: 55°
Weight - Detail2,400 lbs
Weight - Detail7,200 lbs
Weight - kg1088.62
Weight - kg3265.86
Weight - lbs.24
Weight - lbs.72
Width [transom] - Detail84 in
Width [transom] - DetailBottom: 8 ft. 6 in
Height [transom]40 in
Height [transom]42 in
Length - Feet21
Length - Feet3
Length overall - Detail21 ft. 0 in
Length overall - Detail30 ft
Length overall - Meters6.4
Length overall - Meters9.14
Length overall - Inches252
Length overall - Inches36
Height - Detailnot available
Height - DetailSides: 42 in
Height - Metersnot available
Height - Meters1.07
Height - Inchesnot available
Height - Inches42
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull typeModified Vee
Hull typeDeep Vee
Hull thicknessnot available
Hull thicknessSides: 0.16 in. Bottom: 0.25 in. Transom: 0.25 in
Engine and Drivetrain
Fuel tank capacity - Detail50 gal
Fuel tank capacity - Detail160 gal
Fuel tank capacity - Liters189.27
Fuel tank capacity - Liters605.67
Fuel tank capacity - Gal5
Fuel tank capacity - Gal16
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeOutboard
Engine maxnot available
Engine max500 hp
Operational Info
Headroomnot available
HeadroomCabin: 6 ft. 3 in

ThunderJet Alexis OB Offshore 2010 vs ThunderJet TJ Offshore 30 ft. 2013 — Common Questions

Which is the larger boat — the ThunderJet Alexis OB Offshore 2010 or the ThunderJet TJ Offshore 30 ft. 2013?
The ThunderJet Alexis OB Offshore 2010 is the longer of the two at 21,0 feet overall. The ThunderJet TJ Offshore 30 ft. 2013 comes in at 3,0 feet, making it roughly 18,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the ThunderJet Alexis OB Offshore 2010 or the ThunderJet TJ Offshore 30 ft. 2013?
For trailering, the ThunderJet Alexis OB Offshore 2010 has the edge at 24 lbs dry weight versus 72 lbs for the ThunderJet TJ Offshore 30 ft. 2013. Add a motor (typically 300–500 lbs for an outboard in this class), gear, and a partial fuel load and the difference grows. Lighter is friendlier on smaller tow vehicles and on fuel economy while hauling.
What is the maximum horsepower rating for these boats?
The ThunderJet TJ Offshore 30 ft. 2013 has a documented max rating of 500 hp. Engine specifications for the ThunderJet Alexis OB Offshore 2010 were not available in our database — check the OEM spec sheet or manufacturer's website for confirmation.
How many people can each boat hold?
The ThunderJet Alexis OB Offshore 2010 is Coast Guard rated for 6 passengers, while the ThunderJet TJ Offshore 30 ft. 2013 is certified for 9. Note that legal capacity and comfortable capacity aren't always the same thing — on a full day out, most experienced boaters aim for about 80% of the rated number to keep things comfortable.
Which boat is wider, and does it affect trailering?
The ThunderJet Alexis OB Offshore 2010 measures 102" wide, compared to 12" for the ThunderJet TJ Offshore 30 ft. 2013. The US standard-width towing limit is 8’6" (102") in most states — anything over that may need a wide-load permit. Confirm your specific route requirements with each state's DOT.
Which boat has the larger fuel tank — the ThunderJet Alexis OB Offshore 2010 or the ThunderJet TJ Offshore 30 ft. 2013?
The ThunderJet TJ Offshore 30 ft. 2013 has the bigger tank at 16 gallons, versus 5 gallons on the ThunderJet Alexis OB Offshore 2010. That 11-gallon difference translates to roughly 33–55 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the ThunderJet Alexis OB Offshore 2010 and ThunderJet TJ Offshore 30 ft. 2013 from the same manufacturer?
Yes — both the ThunderJet Alexis OB Offshore 2010 and the ThunderJet TJ Offshore 30 ft. 2013 are built by ThunderJet. That means shared dealer networks, common parts availability, and consistent build quality across the line. The choice between them is essentially a question of how much boat you need, not which brand you trust.